31042232 has 16 divisors (see below), whose sum is σ = 62681640. Its totient is φ = 14327136.

The previous prime is 31042217. The next prime is 31042241. The reversal of 31042232 is 23224013.

It is a self number, because there is not a number n which added to its sum of digits gives 31042232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149138 + ... + 149345.

Almost surely, 2^31042232 is an apocalyptic number.

It is an amenable number.

31042232 is an abundant number, since it is smaller than the sum of its proper divisors (31639408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31042232 is a wasteful number, since it uses less digits than its factorization.

31042232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298502 (or 298498 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 31042232 is about 5571.5556175991. Note that the first 3 decimals coincide. The cubic root of 31042232 is about 314.2806529685.

Adding to 31042232 its reverse (23224013), we get a palindrome (54266245).

The spelling of 31042232 in words is "thirty-one million, forty-two thousand, two hundred thirty-two".